Slide fastener



1936 s. H. NORTON SLIDE FASTENER Filed Feb. 27, 1952 INVENTOR. HNbrZon BY W 3 ATTORN Samuel Patented Nov. 24, 1936 SLIDE rasrmma Samuel H. Norton, Meadville, Pa.,i assignor to Hookless Fastener Pennsylvania Company, a corporation of Application February 27, 1982, Serial No. 595,569

7 Claims. ((31.24-205) My invention relates to edgewise interlocking:

slide fasteners and particularly to improvements in and relating to a covering for the metal elements of. the fastener.

The principal object of my invention is to provide an improved covering which shall be eflicient and durable, neat in appearance and capable ofbeing easily and cheaply manufactured.

In the accompanying drawing I have shown for purposes of illustration the preferred embodiment and a few slight modifications thereof which my invention may assume in practice. In this drawing:

Fig. 1 is a plan view of a fastener constructed in accordance with my invention;

Fig. 2 is a cross sectional view on line 2-2 of Fig. 1;

Fig. 3 is a perspective view of the tape and covering strip before attachment of the fastener elements;

Fig. 4 is a longitudinalsection on line 4-4 of Fig. 1;

Fig. 5 is a cross sectional-view showing slight modifications; and a Fig. 6 is a perspective view similar to that of Fig. 3 showing a'slight modification.

A fastener of the type in question comprises base strips .or stringers indicated at 6 having fastener elements 1 attached to their adjacent edges. Each of these fastener elements has a pair of jaws 8 at one end for securing them to ,the stringer and an interlocking end 9 which projects outwardly beyond the edge of the stringer and is adapted to interengage with elements of the opposite seriesin a well known manner. {in operating slider Ill having a pull tab l I is adapted to cause engagement or disengagement of the fastener elements as the slider is moved from one end to the other of :the fastener. The stringer construction shown in Fig. 3 comprises a relatively wide fabric strip folded back upon itself, the folded edge being designated l2 and the covering part l3. The folded edge is preferably beaded by attaching suitable cords M. The covering portion I3 is folded back over the fastener elements and extends outwardly from the beaded edge over the interlocking portions of the elements, so that when the fastener is closed, it will meet the corresponding cover strip on the opposite fastener part and completely conceal the fastener. elements. Preferably the .cover strips meet in the longitudinal center lineas illustrated.

Suitable means must be employed for holding the cover strips l3 closely against the metal fas- I the metal elements with a different material from tener elements and for this purpose a suitable ce- I menting material may be used, or if desired, lines of stitching 15- as indicated in Fig. l or metal clips l6 as shown in Fig. 2 may be substituted.

I prefer to use stitching, which as shown in Figs. 5 1 and 4, penetrates and secures together the cover strip and base tape between the interlocking and attaching endsof the fastener elements, and between adjacent interlocking elements in each row.

The modifications shown in Figs. 5 and 6 contemplate the use of separate strips I1 and i8 for the fastener element stringers and cover strips respectively, but otherwise the construction and function of the parts are the same. In Fig. 5

.the edge of the cover strips is clamped under the l v jaws of the fastener elements while in Fig. 6 the edge of the cover strip is sewn in under the cords it. These modiflcations'will permit covering of that of the base strips, which may be desirable when'the base strips or stringers must be strong and comparatively thick.

As a result of my invention it will be observed that an exceedingly simple, durable and efflcient combination has been devised for concealing the metal elements of a fastener of the character set forth, and furthermore, the construction may be easily and cheaply manufactured without radical departure from manufacturing methods already in use.

While I have shown and described in this application one embodiment and several modifications which my invention may assume in practice, it will be understood that they are merely for the purposes of illustration and description and that various other forms may be devised within the scope of .my invention as defined in the appended claims.

What I claim as my invention is:

1. In an edgewise interlocking slide fastener, a pair of fabric strips, each strip being folded back upon itself, cooperating series of fastener elements having attaching portions securing them to the folded edges of said fabric strips, one of said folds of each strip being turned back over the fastener elements and extending to the longitudinal center line of the fastener and constituting cover strips to conceal the fastener elements when the fastener is closed, attaching means for holding said cover strips closely "against the fastenerelements, and an operating type comprising a flexible supporting strip foldecl along its length and a row of interlocking elements attached to the folded edge of said strip, one of the folded portions of said supporting strip being reversely folded over said fastener elements so as to substantially cover the row of elements, and means for securing said reverseiy folded portion to the covered sides of said interlocking elements.

A. fastener structure such as set forth in the preceding claim. in which the means for securing; said folded portion to the covered sides .of the interlocking elements comprises a line of stitching extending lengthwise of said supporting strip.

A fastener structure such as set forth in the claim preceding the one above in which the folded edge portion of the supporting strip is provided with a strengthening member extend.- ine' longitudinally of sold supporting strip.

5. A fastener structure of the slide operated type comprising a flexible supporting strip folded along its length and a row of interlocking elements attached at their root portions to the folded edge of said supporting strip, one of the folded portions of said supporting strip being adapted for attachment to the edge of an opening in an article, the other of the folded portions of saicl supporting strip being reversely folded over the root portions of said interlocking elements so as to extend toward the interlocking portions thereof, and a line of sewing est/ending as 9. whole lengthwise of acid supporting strip and penetroting both of the folded portions thereof.

6. A fastener structure such as set forth in the preceding claim in which the line of sewing includes stitches extending lengthwise of the supporting strip and penetrating said first "mentioned folded portion thereof, said stitches being positioned adjacent to the root portions of theinterloeiiing elements.

7. In an edgewise interlocking slide fastener, a pair of fabric strips, each strip being folded back upon itself. cooperating; series of fastener elements having attaching portions securing them to the folded portion of said fabric strips, one of sold folds of each strip being turned back over the fastener elements and extending to the longitudinal center line of the fastener and constit'uting cover strips to conceal the fastener elements when the fastener is closed, and an opereting slider embracing both said fastener element series and said cover strips.

SAMUEL I-l. NORTGN.

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